Blastocyst development rate impacts outcome in cryopreserved blastocyst transfer cycles
نویسندگان
چکیده
منابع مشابه
Blastocyst development rate impacts outcome in cryopreserved blastocyst transfer cycles.
OBJECTIVE To assess cycle outcome among day 5 and day 6 cryopreserved frozen-thawed blastocyst embryo transfers (FBET). DESIGN Retrospective cohort study. SETTING Military-based assisted reproduction technology (ART) center. PATIENT(S) One hundred seventy-two nondonor, programmed cryopreserved embryo cycles. INTERVENTION(S) Fully expanded blastocysts on day 5 were cryopreserved on day 5...
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OBJECTIVE It is well known that fresh blastocyst transfer results in better pregnancy outcomes with a smaller number of transferred embryos compared with cleavage stage embryo transfer. However, in terms of frozen-thawed blastocyst transfer, only a few studies are available. We aimed to evaluate clinical outcomes of frozen-thawed embryo transfer (FET) with blastocysts. METHODS Retrospective a...
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OBJECTIVE To compare the outcome of transfer of thawed blastocysts frozen on either day 5 or day 6 after in vitro fertilisation. DESIGN Cohort observational study. SETTING Tertiary assisted conception unit in London, UK. POPULATION Six hundred and forty-two consecutive nondonor programmed thawed blastocyst transfer (TBT) cycles. METHODS High-grade blastocysts were frozen on day 5 (n = 3...
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OBJECTIVE To determine the incidence of embryo retention (ER) in the transfer catheter following embryo transfer (ET) in blastocyst transfer and investigate whether retransferring retained embryos has an impact on reproductive outcomes in patients undergoing in vitro fertilization-ET. METHODS We retrospectively analyzed the records of 1,131 blastocyst transfers, which comprised 223 single bla...
متن کاملEffect of artificial shrinkage on clinical outcome in fresh blastocyst transfer cycles
OBJECTIVE This study aimed to determine the safety and clinical effect of artificial shrinkage (AS) in terms of assisted hatching of fresh blastocysts. Also, we evaluated the correlation between patient age and the effect of AS on clinical outcome. METHODS Two AS methods, using a 29-gauge needle and laser pulse, were compared. Seventy-three blastocysts were shrunk using a 29-gauge needle and ...
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ژورنال
عنوان ژورنال: Fertility and Sterility
سال: 2008
ISSN: 0015-0282
DOI: 10.1016/j.fertnstert.2007.10.029